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Parker Hannifin Corporation | Pump & Motor Division | Kings Mountain, NC
WARNING: This product can expose you to chemicals including lead or DEHP which are known to the state of California to cause cancer,
birth defects, and other reproductive harm. www.p65warnings.ca.gov
Catalog HY13-PMD300-SM/US
PGP/PGM 300 Series
Gear Pumps & Motors Service Manual
Assembly Instructions
14) Insert idler gear (Fig. 21). Line up witness marks and
push down.
Figure 21
15) Install top thrust plate (Fig. 22). Make sure the seal
in the thrust plate is facing up over the gear journals
and towards the housing bore. The at side of the seal
should face up with the relief groove facing the outlet
side.
Figure 22
16) Place port end cover over the gear journals
(Fig. 23). Examine port-end cover that is free of any
debris that might get stuck in the section seal. Align
the dowels with the holes in the mating casting. Being
careful not to pinch the gasket-seal, tap the port end
cover lightly in the center between bearing bores to
engage the dowels and to move parts together in the
nal seating and it touches the section seal surface.
Make sure witness marks line up.
Figure 23
17) Insert and hand tighten bolts and washers (Fig. 24).
Finish tightening with an impact gun in a cross pattern.
Figure 24
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